When Checking The P.c.b. - Yamaha RX-V1200 Service Manual

RX-V1200/RX-V1200RDS/HTR-5490/RX-V2200
6. Removal of VIDEO (1), VIDEO (2), VIDEO (4) and
VIDEO (8) P.C.B.s and Tuner
a. Remove 17 screws (D). (Fig. 3)
b. Remove VIDEO (1), VIDEO (2), VIDEO (4) and VIDEO
(8) P.C.B.s and the Tuner. (Fig. 4)

When checking the P.C.B.:

• Put the rubber sheet and a cloth over the equipment.
Then place the P.C.B. upside down on the cloth and
check it. (Fig. 4)
• Connect VIDEO (5) and FUNCTION P.C.B.s by
using the extension cable (AAX30610) for the P.C.B.
check. (Fig. 6)
• Reconnect all cables (connectors) that have been
disconnected.
• The P.C.B. removed from the rear panel does not
work because its grounding is loose. Be sure to
connect the ground of each P.C.B. to the chassis or
GND with a jumper wire or the like.
7. Removal of VIDEO (6), VIDEO (7), and FUNCTION
P.C.B.s
a. Remove CB212, CB975, CB510, CB509, CB505 and
CB503. (Fig. 5)
b. Remove 9 screws (E). (Fig. 3)
c. Remove VIDEO (6), VIDEO (7), and FUNCTION
P.C.B.s. (Fig. 6)
When checking the P.C.B.:
• Put a cloth beside the equipment. Then place the
P.C.B. on the cloth and check it. (Fig. 4)
• Connect VIDEO (5) and FUNCTION P.C.B.s by
using the extension cable (AAX30610) for the P.C.B.
check. (Fig. 6)
• Reconnect all cables that have been disconnected.
• The P.C.B. removed from the rear panel does not
work because its grounding is open. Be sure to
connect the ground of each P.C.B. to the chassis or
GND with a jumper wire or the like.
13
VIDEO (8)P.C.B.
VIDEO (1)P.C.B.
VIDEO (5)P.C.B.
Rubber sheet
and cloth
Fig. 4
CB212
CB975
Fig. 5
FUNCTION P.C.B.
Block
and
cloth
VIDEO (6) P.C.B.
VIDEO (7) P.C.B.
Fig. 6
VIDEO (2)P.C.B.
VIDEO (4)P.C.B.
Extension cable
Tuner
CB503
CB510
CB509
CB505
Extension cable
(AAX30610)